QT325G-28.63636MAGV-T

Overview

The QT325G-28.63636MAGV-T is a MHz quartz crystal manufactured by QST, housed in a 3.2x2.5 mm glass seal package. It operates at a fundamental frequency of 28.63636 MHz with a frequency tolerance of ±30 ppm and a stability of ±50 ppm over the -40°C to +85°C temperature range. The component features an equivalent series resistance (ESR) of 60 Ohms and requires a load capacitance of 8 pF. It utilizes a 4-SMD, no lead configuration for surface mount integration.

Feature Summary

• Glass seal construction for environmental protection
• Surface mount design for automated assembly
• Wide operating temperature range capability

Applications

• Microcontroller clock sources
• Communication module timing
• Consumer electronics oscillators

Procurement Notes

Verify the specific suffix 'GV' against official QST documentation to confirm the exact load capacitance and stability specifications. Ensure the supplier provides genuine components with traceable origin. Cross-reference the datasheet for reflow soldering profiles compatible with glass seal packages to prevent mechanical stress during assembly processes.

Selection Notes

Select this component when a compact 3.2x2.5 mm footprint is required alongside precise 28.63636 MHz timing. Consider the 60 Ohm ESR and 8 pF load capacitance requirements for circuit compatibility. Evaluate the ±50 ppm stability against system jitter sensitivity needs within the industrial temperature range.

Part Context

This part belongs to the QT325G series of MHz crystals from QST, designed for space-constrained applications. The series offers various stability options denoted by suffix letters, with the 'G' indicating ±50 ppm stability. The glass seal variant provides enhanced durability compared to standard epoxy-sealed counterparts.

Replacement Considerations

Direct substitutes include QT325G-28.63636MAHV-T and QT325G-28.63636MAHJ-T from QST, differing primarily in load capacitance values. Verify pinout and electrical parameters before substitution.